Advanced Qualification · A-001 Advanced theory · A-001-001-003
Quel terme décrit le temps que prend le courant, dans un circuit RL, pour atteindre 63,2% de sa valeur maximale?
- AUn facteur de temps de valeur 1
- BUn taux exponentiel
- CUne constante de temps
- DUne période exponentielle de valeur 1
Correct answer: C — Une constante de temps. Question tirée de la banque officielle d'ISDE.
Why
In an RL circuit, which contains resistance and inductance, the current does not jump instantly to its full strength but rises gradually. The full explanation — and one for every question — is in Pro.
Practise this section
Advanced theory is section A-001 of the Advanced exam: Advanced theory: time constants, reactance, impedance, resonance, Q, and the mathematics behind tuned circuits.
Drill A-001 — free, no account